several other material？is material plural or singular?
in this sentence material means diffent kinds of documents, certificates

Question

Answer

If you're talking about the actual documents, you can use the plural.
For example: The conference materials (videos, PDF files, etc.) were uploaded to the website.

If you're talking about the contents of the documents, you keep it in the singular.
For example: Please go over the material we discussed today.

Answer

Materials - any tangible items and the answer to your question if material is singular or plural it is singular..  Unless you add s to make it plural.

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